The top-seeded Wozniacki defeated Romanian Monica Niculescu 6-3, 6-2, while
the second-seeded Stephens got past Austrian Yvonne Meusburger 7-5, 6-4 on the
indoor hardcourts at Kockelscheuer Sport Centre. Niculescu was the back-to-
back runner-up in Luxembourg, including a loss against American Venus Williams
in last year's finale.

Wozniacki's quarterfinal opponent on Friday will be eighth-seeded Serb Bojana
Jovanovski, while Stephens will take on Swiss Stefanie Voegele.

The 2008 Luxembourg runner-up Wozniacki and Stephens were joined in the
quarterfinals by third-seeded Wimbledon runner-up Sabine Lisicki, an easy 6-4,
6-0 winner against Czech qualifier Tereza Smitkova. Lisicki was a Luxembourg
finalist back in 2009.